#include <stdio.h>
main()
{
    int x, y, z, j=0;
    printf("Following are possible plans to buy 100 fowls with 100 Yuan.\n");
    for (x=0; x<=20; x++)
      for(y=0; y<=33; y++)
    {
        z =100-x-y;
        if ( z%3==0 && 5*x+3*y+z/3==100)
         printf("%2d: cock=%2d hen=%2d chicken=%2d\n",++j,x,y,z);
    }
}